package thinkingInJava.ClassInfo.PetCount_;

//: net/mindview/util/MapData.java
//A Map filled with data using a generator object.
import java.util.*;
import thinkingInJava.arrays.*;

public class MapData<K,V> extends LinkedHashMap<K,V> {
	// A single Pair Generator:
	public MapData(Generator<Pair<K,V>> gen, int quantity) {
		for(int i = 0; i < quantity; i++) {
			Pair<K,V> p = gen.next();
			put(p.key, p.value);
		}
	}
	// Two separate Generators:
	public MapData(Generator<K> genK, Generator<V> genV,
			int quantity) {
		for(int i = 0; i < quantity; i++) {
			put(genK.next(), genV.next());
		}
	}
	// A key Generator and a single value:
	public MapData(Generator<K> genK, V value, int quantity){
		for(int i = 0; i < quantity; i++) {
			put(genK.next(), value);
		}
	}
	// An Iterable and a value Generator:
	public MapData(Iterable<K> genK, Generator<V> genV) {
		for(K key : genK) {
			put(key, genV.next());
		}
	}
	// An Iterable and a single value:
	public MapData(Iterable<K> genK, V value) {
		for(K key : genK) {
			put(key, value);
		}
	}
	// Generic convenience methods:
	public static <K,V> MapData<K,V>
	map(Generator<Pair<K,V>> gen, int quantity) {
		return new MapData<K,V>(gen, quantity);
	}
	public static <K,V> MapData<K,V>
	map(Generator<K> genK, Generator<V> genV, int quantity) {
		return new MapData<K,V>(genK, genV, quantity);
	}
	public static <K,V> MapData<K,V>
	map(Generator<K> genK, V value, int quantity) {
		return new MapData<K,V>(genK, value, quantity);
	}
	public static <K,V> MapData<K,V>
	map(Iterable<K> genK, Generator<V> genV) {
		return new MapData<K,V>(genK, genV);
	}
	public static <K,V> MapData<K,V>
	map(Iterable<K> genK, V value) {
		return new MapData<K,V>(genK, value);
	}
} ///:~

